4 Which is an example of active transport? A movement of glucose molecules into the cells of the villi B movement of glucose molecules down a concentration gradient C movement of ions in blood plasma D movement of water in the transpiration stream 相关知识点: 试题来源: 解析 A 反馈 收...
百度试题 结果1 题目30 Which process can be carried out by a mature red blood cell? A A active transport B cell division C phagocytosis D protein synthesis 相关知识点: 试题来源: 解析 A 反馈 收藏
某高炉冶炼条件如下：焦比600kg/t，C固84%；不喷吹燃料；炉顶煤气成分为CO2=15.3%，CO=24.2%，CH4=0.3%，H2=2.0%；[C]=4%，[Fe]=94%；炉尘C尘=10 kg/t；矿石TFe=48.65%（Fe2O3=55.3%，FeO=12.78%），假定有1/3的H2参加了还原，求铁的直接还原度rd？
Listening, which is an active behavior of human beings,___(consist)of hearing, understanding as well as remembering.(用所给词的适当形式填空) 23-24高二上·广东东莞·期中查看更多[1] 更新时间:2023/11/23 18:15:07 【知识点】一般现在时解读语法一致解读consist of 抱歉! 您...
Which of the following transport processes is involved if membrane potential repolarizing from +30mV to -50mV in an AP? A. diffusion B. Facilitated diffusion C. Primary active transport D. Secondary active transport E. Endocytosis
There is an ongoing debate about what is essential for teachers to know (understood in a very broad sense). Writers have variously described the core knowledge for all teachers as:‘situated knowledge’,‘craft knowledge’,‘case knowledge’,and ‘personal practical knowledge’. However,teacher kno...
Which of the following transport mechanisms is not rate limited by an intrinsic Vmax(Vmax–最大转运速度)? A.Facilitated di?usion via carrier B.Facilitated di?usion via channel C.Primary active transport via pump D.Secondary active transport via exchanger 相关知识点: 试题来源: 解析 Facilitated...
In any case, the formation of the TDN centres has to be linked to the weak IR absorption that has been detected recently: there is no doubt that certain kinetic correlations should be regarded as having been established. However, further work is required to reveal an overall picture. It ...
1When the system upon which a transport entity is running fails and subsequently restarts, the (136) information of all active connections is lost. The affected connections become half-open, as the side that did not fail does not yet realize the problem. The still active side of a half-ope...
Active transport is the most important form of human transport. Which of the following is not a feature of active transfer A. Reverse concentration gradient B. Consumption of ATP C. Need carrier protein help D. Main transport ions